package com.jt.service.impl;

import com.jt.mapper.UserMapper;

import com.jt.pojo.User;
import com.jt.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper userMapper;/*jdk动态代理对象*/

    @Override
    public List<User> findAll() {
        //条件构造器中没有条件，可以使用null
        return userMapper.selectList(null);
    }
}
